.jshintrc

Prohibit the use of bitwise operators (&, |, ^, etc.)

Requires you to always put curly braces around blocks in loops and conditionals

Prohibits the use of == and != in favor of === and !==

The ECMAScript version to which the code must adhere

Requires all for in loops to filter object's items with obj.hasOwnProperty()

Prohibits overwriting prototypes of native objects such as Array, Date and so on

Suppresses warnings about declaring variables inside of control structures while accessing them later from the outside

Enables warnings about the use of identifiers which are defined in future versions of JavaScript

Suppresses warnings about the iterator property.

Prohibits the use of a variable before it was defined

Prohibits unnecessary clauses within switch statements

Max cyclomatic complexity per function

Max depth of nested blocks

Maximum amount of warnings JSHint will produce before giving up

Max number of formal parameters allowed per function

Max number statements per function

Prohibits the use of arguments.caller and arguments.callee

Prohibits the use of the comma operator

Warns about non-breaking whitespace characters

Prohibits the use of constructors for side-effects (without assignment)

Suppresses warnings about invalid typeofoperator values

Async functions resolve on their return value. In most cases, this makes returning the result of an AwaitExpression (which is itself a Promise instance) unnecessary

Enables warnings for regular expressions which do not include the 'u' flag

Suppresses warnings about variable shadowing. i.e. declaring a variable that had been already declared somewhere in the outer scope

Prohibits the use of the grouping operator when it is not strictly required.

Requires all code to run in ES5 strict mode

Warns when a comma is not placed after the last element in an array or object literal

Prohibits the use of explicitly undeclared variables

Warns when you define and never use your variables

Forbids the use of VariableStatements (var) in favor of let and const

Suppresses warnings about missing semicolons

Suppresses warnings about the use of assignments in cases where comparisons are expected

Suppresses warnings about the debugger statements in your code

Tells JSHint that your code uses ES3 array elision elements, or empty elements

Suppresses warnings about == null comparisons

Suppresses warnings about the use of eval

Suppresses warnings about the use of expressions where normally you would expect to see assignments or function calls

Suppresses warnings about missing semicolons, but only when the semicolon is omitted for the last statement in a one-line block

Suppresses warnings about functions inside of loops

Tells JSHint that your code uses Mozilla JavaScript extensions

Suppresses warnings about generator functions with no yield statement in them

Prohibits the use of ++ and --

Suppresses warnings about the __proto__ property

Suppresses warnings about the use of script-targeted URLs

Suppresses warnings about constructions like new function () { ... }; and new Object;

Suppresses warnings about possible strict violations when the code is running in strict mode and you use this in a non-constructor function

Suppresses warnings about the use of the with statement

[Environment] Web Browser (window, document, etc)

[Environment] Browserify

[Environment] CouchDB

[Environment] Development/debugging (alert, confirm, etc)

[Environment] Dojo Toolkit

[Environment] Jasmine unit testing framework

[Environment] jQuery

[Environment] Mocha unit testing framework

[Environment] ES6 module

[Environment] MooTools

[Environment] Node.js

[Environment] Widely adopted globals (escape, unescape, etc)

[Environment] PhantomJS runtime environment

[Environment] Prototype JavaScript framework

[Environment] Rhino

[Environment] Defines globals exposed by the ShellJS library

[Environment] Defines globals for typed array constructors

[Environment] Web Workers

[Environment] Windows Scripting Host

[Environment] Yahoo User Interface

Specify a white list of global variables that are not formally defined in the source code

Specify the path to another configuration file to use as a base, relative to the current file

Specify the options that should only be applied to files matching a given path pattern